Swiped and sent out to my users. :-) Thanks!

-----Original Message-----
From: Albert Eddie [mailto:[EMAIL PROTECTED]
Sent: Tuesday, June 07, 2005 1:50 PM
To: Exchange Discussions
Subject: Bouncing messages


I do not know what is funnier, the fact that this sounds like an Abbott
and Costello routine; or the fact that it is a fact and can explain SOME
of the undeliverable messages you or your friends get.

Eddie Albert, Network Engineer
Pentagon Satellite Office
Washington DC - USA

-----Original Message-----
From: HelpDesk
Sent: Tuesday, June 07, 2005 1:20 PM

Have you been getting undeliverable emails sent back to you from email
addresses that you do not recognize?=20

It's a virus problem. Here is the explanation:

Imagine 3 people A, B, and C. A knows B, and B knows C, but A and C do
not know each other. In this scenario, B has both A's and C's email
addresses stored on his computer.

Now person B gets a virus on his computer, and the virus creates an
email message, randomly grabs two email addresses, puts one of them (A)
into the "from" line, and the other (C) in the "to" line, and sends the
email off. Now person C gets an email from A, a person he doesn't know,
and assumes A is a spammer. He sends a nasty email to A saying "are you
a spammer?"

That answers the second part of your question. To answer the first part,
imagine that person C has changed his email address, so the email
address the virus sends to is invalid. So what happens? Since the virus
has forged A into the "From" line, it is A who gets the "delivery
failure" notifications, even though he never sent out an email.

Is there anything you can do about it? Not a thing. Sorry.

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